20318435152

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{1301}}^1$

素因数の和:1437

約数の個数: 120

約数和(自身を含む): 43614208512

約数和(自身を除く): 23295773360

約数列:

[1, 2, 4, 8, 16, 23, 31, 37, 46, 62, 74, 92, 124, 148, 184, 248, 296, 368, 496, 592, 713, 851, 1147, 1301, 1369, 1426, 1702, 2294, 2602, 2738, 2852, 3404, 4588, 5204, 5476, 5704, 6808, 9176, 10408, 10952, 11408, 13616, 18352, 20816, 21904, 26381, 29923, 31487, 40331, 42439, 48137, 52762, 59846, 62974, 80662, 84878, 96274, 105524, 119692, 125948, 161324, 169756, 192548, 211048, 239384, 251896, 322648, 339512, 385096, 422096, 478768, 503792, 645296, 679024, 770192, 927613, 976097, 1107151, 1492247, 1781069, 1855226, 1952194, 2214302, 2984494, 3562138, 3710452, 3904388, 4428604, 5968988, 7124276, 7420904, 7808776, 8857208, 11937976, 14248552, 14841808, 15617552, 17714416, 23875952, 28497104, 34321681, 40964587, 55213139, 68643362, 81929174, 110426278, 137286724, 163858348, 220852556, 274573448, 327716696, 441705112, 549146896, 655433392, 883410224, 1269902197, 2539804394, 5079608788, 10159217576, 20318435152]

約数ペア:

[(1, 20318435152), (2, 10159217576), (4, 5079608788), (8, 2539804394), (16, 1269902197), (23, 883410224), (31, 655433392), (37, 549146896), (46, 441705112), (62, 327716696), (74, 274573448), (92, 220852556), (124, 163858348), (148, 137286724), (184, 110426278), (248, 81929174), (296, 68643362), (368, 55213139), (496, 40964587), (592, 34321681), (713, 28497104), (851, 23875952), (1147, 17714416), (1301, 15617552), (1369, 14841808), (1426, 14248552), (1702, 11937976), (2294, 8857208), (2602, 7808776), (2738, 7420904), (2852, 7124276), (3404, 5968988), (4588, 4428604), (5204, 3904388), (5476, 3710452), (5704, 3562138), (6808, 2984494), (9176, 2214302), (10408, 1952194), (10952, 1855226), (11408, 1781069), (13616, 1492247), (18352, 1107151), (20816, 976097), (21904, 927613), (26381, 770192), (29923, 679024), (31487, 645296), (40331, 503792), (42439, 478768), (48137, 422096), (52762, 385096), (59846, 339512), (62974, 322648), (80662, 251896), (84878, 239384), (96274, 211048), (105524, 192548), (119692, 169756), (125948, 161324)]